Using this method I further constructed additional planes to help me keep track of perspective, while trying to match my sketch lines as close as I could.

以这种方法，我构建了更多的平面，以帮助我在尽可能地匹配线稿的同时，保持透视关系。

youdao

First, engineers discovered that aerial surveillance radars left over from the Soviet era were better at detecting stealth bombers than they had expected, due to a peculiar match between the dimensions of the planes and the length of the radar waves.

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For instance, a match could have many rank 1 and 2 planes, and possibly a rank 4 plane on each team.

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